3D printer



FIG. 1 is a perspective view from the front of a 3D printer in accordance with the present invention;

FIG. 2 is a perspective view from the rear thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines show portions of a 3D printer that form no part of the claimed design. 

CLAIM The ornamental design for a 3D printer, as shown and described. 